Walcott, Charles D.  1850-1927. <br/><br/>
Cambrian Brachiopoda, 
by Charles D. Walcott. 
 - Washington,  Govt. print. off.,  1912. 
 - 2 v.  illus., civ pl.  30 cm. 
<br/><br/>Bibliography: p. 13-26. 
<br/><br/>pt. 1. Text.--pt. 2. Plates. 
<br/><br/><label>LCCN: </label>gs 13000001  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Brachiopoda, Fossil.
<br/><br/><label>LC Class. No.: </label>QE75  / .M7 v. 51